Q: What are the prime factors of the number 13,787,688?

 A: 2, 3, 139, 4133

Why are those the prime factors of the number 13,787,688?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 13,787,688

13,787,688
Factor Arrows
26,893,844
Factor Arrows
23,446,922
Factor Arrows
21,723,461
Factor Arrows
3574,487
Factor Arrows
1394,133

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 139, 4133

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 139 x 4,133 = 13,787,688

This can also be written as 23 x 31 x 1391 x 4,1331 = 13,787,688

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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